Llechwedd Slate Caverns.

Discover the unique heritage of Welsh Slate

Llechwedd Slate Caverns of Blaenau Ffestiniog is part of a living, working slate mine still being worked to this day by Greaves Welsh Slate - since 1836.

We offer 2 unique underground tours that take you deep underground to explore the world of the Victorian slate miner. The temperature underground is an ambient 54F making the caverns ideal for a family day out - come rain or shine.

Plenty of all year surface facilities to enjoy - shop, cafe, slate workshop (with daily demonstrations) plus the Victorian Village (April-September) with its traditional tavern and old fashioned sweet shop.